A034169 Disjoint discriminants (one form per genus) of type 2.

1, 3, 5, 11, 15, 21, 29, 35, 39, 51, 65, 95, 105, 165, 231

Offset

1,2

References

J. M. Borwein, D. H. Bailey and R. Girgensohn, Experimentation in Mathematics, A K Peters, Ltd., Natick, MA, 2004. x+357 pp. See p. 198.

J. M. Borwein and P. B. Borwein, Pi and the AGM, page 293.

L. E. Dickson, Introduction to the theory of numbers, Dover, NY, 1929.

Links

Table of n, a(n) for n=1..15.

Jonathan Borwein and Kwok-Kwong Stephen Choi, On the representations of xy+yz+zx, Experimental Mathematics, 9 (2000), 153-158.

Formula

a(n) = A034168(n) / 2. - Sean A. Irvine, Aug 03 2020

Crossrefs

Cf. A034168, A034170.

Sequence in context: A281575 A105772 A244520 * A217384 A335279 A136977

Adjacent sequences: A034166 A034167 A034168 * A034170 A034171 A034172

Keyword

nonn,fini,full,nice

Author

Jonathan Borwein (jborwein(AT)cecm.sfu.ca), choi(AT)cecm.sfu.ca (Stephen Choi)

Status

approved